Meet Our Experts

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Our people are experts in their fields

Our gamma technologies products are used daily by contract sterilization and irradiation service providers, pharmaceutical and biotechnology companies, medical device manufacturers and more. Ours is a highly regulated and complex industry. Our experts, a few who appear on this page, are experts in their fields.

Greg Fulford

Greg Fulford

B.Sc., Manager Radiation Protection and Nuclear Transportation, Nordion
Over Greg’s 20 years with Nordion he has taken on ever-increasing roles of responsibility. His experience spans radiation protection, nuclear transportation, product management and program management.

Greg holds a B.Sc. from the University of Waterloo and diploma in Biochemical Technology from Algonquin College.

Chris Howard

Chris Howard

PhD, Manager, Physics and Software Development, Nordion
Chris has over 15 years of experience studying and applying radiation physics in academic and industrial applications.

Chris supports gamma technologies at Nordion and Sotera Health’s sister companies. He specializes in modeling dosimetry and dose to product in self-contained and industrial scale gamma irradiators. Chris holds an MSc degree from Queen’s University and a PhD from the University of Alberta.

Tom Wasiak

Tom Wasiak

P.Eng, MSc. Biomedical Engineering, Technical Authority for Sealed Sources
Tom is Nordion’s technical expert for sealed sources. This includes their design, testing, certification, fabrication, use, recycling and disposal. Tom is a member of Professional Engineers of Ontario and has more than 25 years of experience in the field of radioactive sources, biomedical engineering, medical devices and self-contained irradiators. Tom is a an active member and co-convener of the “Sealed Sources” working group (WG11) on the International Standards Organization’s Technical Committee on “Nuclear energy, nuclear technology and radiological protection” (TC 085). Tom holds a Masters Degree in Biomedical Engineering from the Warsaw University of Technology in Poland.
Tom is Nordion’s technical expert for sealed sources. This includes their design, testing, certification, fabrication, use, recycling and disposal. Tom is a member of Professional Engineers of Ontario and has more than 25 years of experience in the field of radioactive sources, biomedical engineering, medical devices and self-contained irradiators. Tom is a an active member and co-convener of the “Sealed Sources” working group (WG11) on the International Standards
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img-Richard-Wassenaar

Richard Wassenaar

H.BSc, PhD Physics, Director, Regulatory Affairs & EHS, Nordion
Richard is a highly organized, results-driven individual who is accountable for all Regulatory Affairs and Environmental Health and Safety (EHS) activities at Nordion, as well as the development, implementation and compliance of Nordion’s safety programs and regulatory license conditions.

Richard graduated with a H.BSc in Physics from Lakehead University and a PhD in Physics with a specialty in medical physics imaging from Carleton University. Richard is certified as a member of the Canadian College of Physicists in Medicine and is a Certified Health Physicist.

Richard is a highly organized, results-driven individual who is accountable for all Regulatory Affairs and Environmental Health and Safety (EHS) activities at Nordion, as well as the development, implementation and compliance of Nordion’s safety programs and regulatory license conditions.
Richard graduated with a H.BSc in Physics from Lakehead University and a PhD in Physics with a specialty in medical physics imaging
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Richard Wiens

Richard A. Wiens

Director, Business Development & Strategic Supply
Richard holds more than 20 years of experience leveraging a unique blend of business, manufacturing and information technology.His strong communication, organizational and technical skills make him an ideal expert to answer your questions. Richard holds a BASc Mechanical Engineering from the University of Waterloo.

Along with our sister companies, Nelson Labs and Sterigenics, we are the only fully integrated, global provider of mission-critical health sciences, lab services and sterilization solutions for the healthcare industry. With more than 500 combined years of industry-recognized scientific and technological expertise, Sotera Health ensures the safety of healthcare for more than 180 million people around the world every year.